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Lantern quantitative reasoning book 6 test 1. Pls help me out with how to solve this. Thanks.

Upload vertical image and make the write up I can't see the numbers clearly.

Mrshape:
Upload vertical image and make the write up I can't see the numbers clearly.

I hope you can see it clearly now? Thanks

From the example, the formula is:
(the multiplication of the three lower numbers) ÷ 10= the upper number

From example 1:
(3×8×5)÷10=x
120÷10=x
12=x
Therefore x=12

From example 2:
(7×2×15)÷10=x
210÷10=x
21=x
Therefore x=21

Now go ahead and solve!!!

My 2cents though...
CC: toykathy

Pareidolia:
From the example, the formula is:
(the multiplication of the three lower numbers) ÷ 10= the upper number

From example 1:
(3×8×5)÷10=x
120÷10=x
12=x
Therefore x=12

From example 2:
(7×2×15)÷10=x
210÷10=x
21=x
Therefore x=21

Now go ahead and solve!!!

My 2cents though...
CC: toykathy

toykathy:
Lantern quantitative reasoning book 6 test 1. Pls help me out with how to solve this. Thanks.

Use am go shine for ur junior bros

@Op, I hope u can solve the rest or do still need my contribution?

Pareidolia:
From the example, the formula is:
(the multiplication of the three lower numbers) ÷ 10= the upper number

From example 1:
(3×8×5)÷10=x
120÷10=x
12=x
Therefore x=12

From example 2:
(7×2×15)÷10=x
210÷10=x
21=x
Therefore x=21

Now go ahead and solve!!!

My 2cents though...
CC: toykathy

Thank you!

Davoneskay:
@Op, I hope u can solve the rest or do still need my contribution?

Thank you, there is no need.

1. 15
2.2
3.5
4.30
5.1


Solutions

(3x8x5)/10 =12

(7x2x15)/10=21

Exercise

(5x6x5)/10=15

(ax8x5)/10 =8,
40a=80
a = 80/40
a=2.

Mrshape:
Upload vertical image and make the write up I can't see the numbers clearly.

Empty vessels make the loudest noise. Busy body

Pareidolia:
From the example, the formula is:
(the multiplication of the three lower numbers) ÷ 10= the upper number

From example 1:
(3×8×5)÷10=x
120÷10=x
12=x
Therefore x=12

From example 2:
(7×2×15)÷10=x
210÷10=x
21=x
Therefore x=21

Now go ahead and solve!!!

My 2cents though...
CC: toykathy

I wish I knew maths like you

Pareidolia:
!!!
My 2cents though...
CC: toykathy

by the time you used this formula to solve the remaining questions, the answers are inaccurate. But it solves the first two questions
(5×6×5(²))=150÷10= 15
(? ×8×5(5²))= 40÷10 =4
(4×8×5)=160÷10=

SirWhiteFish:
by the time you used this formula to solve the remaining questions, the answers are inaccurate. But it solves the first two questions
(5×6×5(²))=150÷10= 15
(? ×8×5(5²))= 40÷10 =4
(4×8×5)=160÷10=

Is that how he solved it? You are the one rather using a wrong approach from number 2. How would multiply all the values when it should be like this

(8*10) ÷ (8*5) = 80÷40= 2

toykathy:
Thank you!

You're welcome.

uckennety:
I wish I knew maths like you

With determination and God, everything is possible.

SirWhiteFish:
by the time you used this formula to solve the remaining questions, the answers are inaccurate. But it solves the first two questions
(5×6×5(²))=150÷10= 15
(? ×8×5(5²))= 40÷10 =4
(4×8×5)=160÷10=

My formula is valid Sir. Kindly make judicious use of it.

Abeos:
Is that how he solved it? You are the one rather using a wrong approach from number 2. How would multiply all the values when it should be like this

(8*10) ÷ (8*5) = 80÷40= 2

You're right.

Pareidolia:
My formula is valid Sir. Kindly make judicious use of it.

well... Let me go through it

Abeos:
Is that how he solved it? You are the one rather using a wrong approach from number 2. How would multiply all the values when it should be like this

(8*10) ÷ (8*5) = 80÷40= 2

alright

Pareidolia:
With determination and God, everything is possible.

am a graduate already n I hate maths

uckennety:
am a graduate already n I hate maths

It is well.

I look at this stuff last night and I couldn't get it done, even sent the picture to one private school teacher I know but the guy opt out telling me he can't see clearly... Quantitative reasoning is logical

OttHin:
Empty vessels make the loudest noise. Busy body

If I am an empty vessel in reasoning and mathematics , then you don't even exist when it comes to reason or mathematics.
For your information no quantitative reasoning meet for primary school I can't figure out.